Something I keep having to look up is testing MVC (5) responses. There are several types of responses you can return on a MVC method:<\/p>\n\n\n\n
Returning an object means that it will be converted to the format in the Request (e.g. JSON, XML). However, you have no direct control over the returned HTTP code. Example: You can use standard functions as a result, like <\/p>\n\n\n\n This gives the most control over the response message. For example: you can set headers or ReasonPhrase. Example: Because of the extra control of the Response we can also test the extra Response properties:<\/p>\n\n\npublic Person Get(int personId)<\/code>. Testing this is straightforward as you immediately have the result you need. Example:<\/p>\n\n\n\n\/\/ Act\nPerson person = controller.Get(10);\n\n\/\/ Assert\nAssert.That(person.Id, Is.EqualTo(10));\n<\/pre><\/div>\n\n\n
IHttpActionResult<\/h2>\n\n\n\n
Ok(myObject) <\/code>or BadRequest()<\/code>. Testing is straightforward by casting the return value to the expected result class. Example function: public IHttpActionResult Get(int personId)<\/code>. Testing will look like this:<\/p>\n\n\n\n\/\/ Act\nIHttpActionResult actionResult = controller.Get(142);\n\n\/\/ Assert\nAssert.That(actionResult, Is.InstanceOf<NotFoundResult>());\n<\/pre><\/div>\n\n\n
HttpResponseMessage<\/h2>\n\n\n\n
public HttpResponseMessage Get(int personId)<\/code>. Testing requires some extra setup such that the Response Object can be created. Example:<\/p>\n\n\n\n\/\/ Arrange\nPersonController controller = new PersonController();\ncontroller.Request = new HttpRequestMessage();\ncontroller.Configuration = new HttpConfiguration();\n\n\/\/ Act\nvar response = controller.Get(10);\n\n\/\/ Assert\nAssert.IsTrue(response.TryGetContentValue<Person>(out person));\nAssert.AreEqual(10, person.Id);\n<\/pre><\/div>\n\n\n
\n\/\/ Arrange\nPersonController controller = new PersonController();\ncontroller.Request = new HttpRequestMessage();\ncontroller.Configuration = new HttpConfiguration();\n\n\/\/ Act\nvar response = controller.Get(-1);\n\n\/\/ Assert\nAssert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));\nAssert.That(response.ReasonPhrase, Is.EqualTo("Invalid id provided"));\n<\/pre><\/div>\n\n\nConclusion<\/h2>\n\n\n\n